vertical vibration

vertical vibration

The up-and-down vibrations of a helicopter caused by an out-of-track main rotor blade.
References in periodicals archive ?
10-12, adding damping of front and rear suspensions will bulk up the vertical vibration amplitude of the battery, but the increment is relatively small.
Descriptive statistics was used to analyze the data referring to yaw movement, vertical vibration in relation to the type of terrain and boom position error according to the sprayer and the speed.
So the experimental results should be compared with the results of the vehicle-track vertical vibration FEM model at a train speed of 300 km/h.
The vertical vibration creates a uniform amplitude throughout the vibration plate, whereas the sinusoidal vibration creates increased amplitude the further from the pivoting fulcrum at the centre of the vibration plate.
In the results, vertical vibration dropped by a factor of four and stalling virtually disappeared even with heavy loading (the drill string without NeoTork stalled 15 times).
Contract award: acquisition of a system of horizontal and vertical vibration.
The device is a motorized vibration exercise platform that produces vertical vibration with frequency ranges from 20-55 Hz and amplitude ranged from 0.
Equations 1 and 2 show the fitted models for studying the effect of the tractor-forward speed as related to the levels of vertical vibration in the rear and front axles.
Kozyrev found that the weight of the gyroscope under certain conditions would change when there is a vertical vibration of the cross arm.
Considering the results, one can find remarkable consistency between the numerical and experimental results with reference to the natural frequencies of the vertical vibration forms of the rig.
Most seats exhibit a resonance at low frequencies, which results in higher magnitudes of vertical vibration occurring on the seat than on the floor
The vertical vibration plates maintain equal vibration at all points on the plate.